Lock for fuel tanks



FIG. 1 is a top right-side perspective view of the lock for fuel tanks;

FIG. 2 is a front elevation view of the lock for fuel tanks;

FIG. 3 is a left side elevation view of the invention;

FIG. 4 is a rear elevation view of the invention; and,

FIG. 5 is a bottom plan view of the invention.

The ornamental design for a lock for fuel tanks, as shown.